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mac80211: Fix insufficient headroom issue for AMSDU
[ Upstream commitf50d2ff8f0
] ieee80211_amsdu_realloc_pad() fails to account for extra_tx_headroom, the original reserved headroom might be eaten. Add the necessary extra_tx_headroom. Fixes:6e0456b545
("mac80211: add A-MSDU tx support") Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://lore.kernel.org/r/20210816085128.10931-2-pkshih@realtek.com [fix indentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 3 additions and 1 deletions
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@ -3229,7 +3229,9 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
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if (info->control.flags & IEEE80211_TX_CTRL_AMSDU)
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return true;
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if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr)))
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if (!ieee80211_amsdu_realloc_pad(local, skb,
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sizeof(*amsdu_hdr) +
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local->hw.extra_tx_headroom))
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return false;
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data = skb_push(skb, sizeof(*amsdu_hdr));
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